Heat Input in Welding Calculator

Heat input per unit length (Q):

Voltage (V):

Current (A):

Thermal efficiency (η):

Welding speed (v):

How This Is Calculated

$$ Q = \frac{V \cdot I \cdot \eta}{v} $$ where:

Q = Heat input per unit length (J)

V = Voltage (V)

I = Current (A)

η = Thermal efficiency (dimensionless)

v = Welding speed (m/s)

Assumptions

Welding perameters remain constant during welding process.
Heat transfer is ideal.
Heat distribution is uniform.
Weld pool dyanmcis are not considered.

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